One hundred patients will be randomly assigned to either the pilonidal dermoid cyst under Spinal anaesthesia (50 patients)(Group 1) or pilonidal dermoid cyst under epidural anaesthesia (50 patients)(Group 2). Group 1 will be used in spinal catheter in spinal anesthesia procedures or Group 2 will be used epidural catheter in epidural anaesthesia procedures.All patients has symptomatic pilonidal dermoid cyst.